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jeyben [28]
2 years ago
9

How to cross multiply 9/12 =x/100?

Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
6 0
The answer is 75. 1. You simplify which is 3/4
2. Change to decimal then number you will get .75 move decimal two to the right to change to number then you will get 75!
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A pencil and a ruler cost 2.50 together. The ruler costs $1.00 more than the pencil. How much is the pencil
Alenkasestr [34]
P + r = 2.50
r = p + 1

p + p + 1 = 2.50
2p + 1 = 2.50
2p = 2.50 - 1
2p = 1.50
p = 1.50/2
p = 0.75 <=== pencil cost 75 cents

r = p + 1
r = 0.75 + 1
r = 1.75 .....ruler cost 1.75
6 0
3 years ago
Read 2 more answers
PLEASE HELP! THANKS!
Alina [70]
If you add everything up then
14x-2=180
14x=182
x= 13
 
So the angles would equal
2(13)+1= 27
3(13)-3= 36
9(13)= 117
The angles are 27 36 and 117
Which makes the smallest angle 27 which is B.
8 0
3 years ago
Read 2 more answers
Given: ΔABC; b= 10; c = 14, and ∠A = 54°. Find the length of side a to the nearest whole number.
alexandr402 [8]
A² = b² + c² - 2bc cosA
a² = 10² + 14² - 2*10*14 cos54
a² = 100 + 196 - 280 * cos54
a = \sqrt{100 + 196 - 280 * cos54}
a = 11.46

5 0
3 years ago
How to do this because I don't know my class work
salantis [7]
I assume the answer is 1/4
5 0
3 years ago
Gregory predicts that 310 people will attend the spring play. There was an actual of 220 people who attended the spring play.wha
tia_tia [17]
The percent error is 29%. I posted the equation for percent error on your other question.
8 0
3 years ago
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